Attachment for dobby looms



April s 1924. 3,489,514

w. SAPPLEGATE ATTACHMENT FOR DOBBY LOOMS Filed March 3l. 1923 2Sheets-Sheet. l

Apri s, 1924. l 1,489,514 W. S. APPLEGATE ATTACHMENT FOR DOBBY LOOMSFiled March 51. 1925 2 sheets-sheen 2.

'5 levers.

GTI

een

meren s. arrrneers, or raars? tannins, New JERSEY.

ATTAC'MEHT vFR DOBB'SZ' LGGMS.

Applicatie-n filed March 31, 1923. Serial No. 62$1,M1.

To all 107mm t may Concern.:

Be it known that l, `W1LLIAM S. APPLE- s/iTI-z, citizen of AtheUnitedStates, and residing at Mays Landing, county of Atlans tic, Stateof New Jersey, have invented certain neuv and useful niprovements inAttachments for DobbyLooms, or which the following is a specification.

The present invention relates to improvements in textile. Weaving loomsand particularly to dobby looms.

The principal objects of the 'invention are to permit the Weaving ofmore extensive and elaborate designs, or Warp effects, With a dobbymechanism and to reduce the number of heavy Working parts with aresulting reduction in the amount of power required to operate the loom.'With the construction hereinafter described it is possible to obtaindesigns which heretofore have required a Jacquard loom or the use of agreat many v heddle frames in a dobby loom. rlhe present inventionpermits the Weaving of a greater number of Warp eiects Without the useof a corresponding increase or" heddle frames or the complicatedmechanism of a Jacquard loom. The Width and length oi designs in textilefabrics Woven on dobby looms in the have been limited by the l leversand heddle frames employed. st do by looms have between Wenty and thirtytop levers and the intricacy of the design is governed by the number ofheddles which can be operated from these' ln some designs it isnecessary to raise or lower but a very few `Warp threads at .certainstages of the Wea-ve. 'Where heddle :trames are used the Whole Weight orthe frame must be lifted. `ilitli the arnumber or rangement shown anddescribed herein the Weight of the mechanism Jor elevating the Warpthreads is considerably reduced and the number ct levers iler weavingdesigns has been greatly increased. This permits combination of partsare illustrated in the' accompanying drawings 'forming a part oil thisspeciication. ln the'dravvmgs: l

Figure 1 is an elevation of a dobby loom constructed in .accordance withthis inventhe weaving of designs with a greater varia- Figure 2 is anelevation of the arrangemovements to the rocker-lever 14. The'connectingrod 15 is provided at its ends with threaded couplings 16, 16', to allowfor adjustment of the connection between the rocker-levers. Th(-rocker-levers 14e, 14 are fixed on rocker-shafts 17, 17 and are providedwith arms 18, 18', but it is necessary to connect only one of these armswith the usual dobby driving'meehanism. As shown in Figure 2, the arm 18is connectedthrough the lift-rod 19 with the cam-shaft 20. A

Vgear 21 on the cam-shaft meshes with Va gear 22 on the crank-shaft 23.`Secured to the crank-shaft 23 is a pulley`24 through which power istransmitted to the crankshaft from a belt 25. An idle pulley 26, ontowhich the belt may be shifted, is also mounted on the crank-shaft 23.

Each of the (lobby-heads 10, 10 may be provided with any number 'of toplevers, depending on the intricacy of design, the dobby heads in generaluse having from twenty to twenty-eight levers. Assumin for the purposesof description that there'.

are twenty-six levers on each dobby head, at least four of these leversare attached to heddle frames 27 which are utilized to Weave a base `forthe fabric. 1f desired, more heddle rames can be used to improve theground Weave If, however, but four heddle-frames are used there thenremain forty-eight levers which are available for the purpose of weavingdesigns in the4 cloth. To each ofthese levers is attached. a design orneck cord 28. which passes over a sheave 29 and through a 'fixeddistributor or comber-board 30.- This comber board is perforated at reuler intervals and extends across the Widt of the loom frame 11. Thusthe design-cords may be spaced and separated; in the same manner thatharnessl The pins in ille cords ere spaced in the comiier boed. need onelle ordinary 'acqna'fd iooni. ddi-icna.. neck-ccrde 3l lie elieciied tothe corde 28 and passed iough the vconilieif-eeeid In this manner hedesign may "We repeaiee. across; the Width E che Weave, one addi tionalneck-cord being et'eohed in e design cord 'oi each iepetitien of einedesign. eignts oi' iingoee fastened die end of the neces/orde. heid thecoide mail allow them to fell e'ei being iiiie by il'e top-ievel's l2,i2. The Werp eiieeds flirongli eyes 33 in. the cords and iieddiefieines.

The above dobby mecimnism ie dinary conerucion except Lime two(lobby-heads arranged eieppeeie eidee of the icona. and only e,sunieient nnmiiei of heddle-fremes for weavingilie ground. fabi-ric areattached to top-ievei's. in iieu e heddle-freme 'for each lever,neck-ecardsi euch es are used on Jacquard iooine, ine eeeeiied te theremaining levers. iiie edditiene,

V(lobby-'need mechanic-in is actuated frein @he ocleidevei' oi' elledebbv-heed ei iet side of elle leoni eierengli e l5, thus making ii'annee Ineens on the righi: end actuating an eddiionei n connecting the,@obj/*need i the movemens ef the top-ievers are synchronized properactuating ineens, es., foi' insta; pawl 34' and rezclieJ 35, themeizenienie of the pattern-chaine else syneinenized. 'Vith thisarrangement "che en'ire mechanism can be operated in unison eri-'tn i-neene iifigrod i9, as shown in idigure The purpose oi' providing; i headset opnoeie sies of ne cole loiv the use of a le y nunilisei "levees acorresponding incr in the nnnibe n. vm'ieimis oy iviwicli 'Werp 'heedeeen woven into a design. ns'teszd pie large number of top alone; oneSie. of the loom. so i'liet the dolihjv' o unnecessarily ione', itV is'f ni'iengement, to enipioy levees for weaving Wide? Well as moreelalei'ete, desi 100m Without increasing in any greet extent the spacetaken ny by the inem.

Ae peinfed out above, eli ef im.. l cept those. el'tached to neiieri.,..- iam. liftor lower die neckhceds thro-agli which pees the Werpineede need in. 'rf'eeving design lie. fabric. The -iemes 2?? foin' oimore in number, life d lo'we @lie ground Warp threads. "fileievelfs arecontrolled by the peeinn 3, 1.3,

pattern-cha-ins are em'anged to operate the levers in the propersequence tovliit or lower the design cords so that e predetermineddesign can be weven into the fabric. With the erge numbex ef levers "iefor Weaving designe it is epperen v elaboi'ete and complicated designs,Woven in Jacquard looms, can be ob- Aie@ it is poseioie te greatlyincrease elle Width or length of e. figue design. This is o?? greetadvantage in weaving aiiclee such es towels. etc., in which it isdesired io Weave e large iguxi'e er neme. i; has been found by actuelexpeiience that the Widths of the end figure in "Lo'weis, im instance,have been incieesed from l to 3 Limes wi-h eioom patterned eftexilieaiwve descifibed construction. This ie illnei-ated in Figueres 3 end 3^which shew peterns mede fie'm e. loom in which EwenJy-eigiit levers eeeneed end one having fifty-mvo ievers.

operation of the 'loom will be appar enc fiom the foregoing deseiipion.The @lobby-heede- 10, 10' ere actuated by menne of the crank-shaft 23,gears 21, 22, cem-shaft 2K0. iitend 19s erm 18i and the connecting rodl5, The i1eddi-e-resnes for weaving the ground fabric ere connected tofons: or more iop-levees which iovvei and lift the heddie-'iremesconiinnonsly The neck cerda, or deeigneords, me ense-cned@ thereieeining opievere which ere contreiled by the petten-eheins 13., 13'.Rech of `the nec3-corde passes over e sheeve e perforation in thecombe-r-boaid .iixe @ins in the pattern-c *eine control the V:sequencein which the levers are raised or depressed. The pins are so arrangedthat Gerwin neck-corde wii be lifted oi' lowered ehehe proper 'time sothat n predetermined psffcern can be Woven int-o the abiic. 1n ehedrawings one set oi neck-cords 'oi Weaving pattern is shown, but thispattern een be repeated severei times eomes the Width e the :Eeei'o byattaching additional Records eo the neck-cords which are vened to ehebop-levers. Time e Series of deeignfcords, propeiiy spaced along thecoxnbeebeeid. een be lifted. or lowered togeliez by one topdevei in einemanner s een be. woven adjncen eeen other and with ehe ieige number of'ieveis employed they cen be mede much widerand iengei; ilien ilioee newWoven on ieelsva ve such I igeineo.

f edvanteges of the arrangement flesczibed above me evident. Theneaiviiie;2 of designe heretofore requiring a Jacquard ieeln, with itscomplicated card und griff mechanism., may be done on en ovdineuy(lobby-inem. AL the same time power is ecc-nomized by eliminating man vof #he drawbacks incident to the employmem of :x number ofileddleizfenies which, el best. ere he -vy and noisy. The additionalLobby-head would loe e duplicatec" the one aieady installed on themachine. both @lobby-heads being of the usuel types found on looms ofthis kind. This exim doooyheed can be attached to the 100m. with littlelevers located on each end of the loom operating said harness frames andsaid neck end of the loom or no trouble, the only additional partbeing,A

the connecting-rod which can be made from a wood or iron bar. Y

While the invention has been shown and described in detail it will beapparent that many changes may be made therein without departing fromthe spirit of the invention.

Having thus described is'claimed as new and desired to be secured byLetters Patent is:

1. In a loom for weaving figured' fabrics, harness frames for raisingand lowering ground warp threads, top levers for raising and lowerinsaid harness frames, eachhar ness frame eing raised and lowered by asingle top lever, neck cords for raising and lowering figuring warpthreads, and a plurality of dobby mechanisms for selectively controllingsaid harness frames and said neck cords.

2. In a loom for weaving figured fabrics, harness frames for raising andlowering ground warp threads, top levers for raising and lowerin saidharness frames, each harness frame being raised and lbwered by -a singletop lever, neck cords for raising and lowering figuring warp threads,and dobby mechanism for selectively controlling `said= harness framesand said neck cords, part of said dobby mechanism being located on oneend of the loom and part on the opposite end of the loom.

3. In a loom for weaving figured fabrics, harness frames for raising andlowering ground warp threads, top levers for raising and lowerinG saidharness frames, each harness frame being raised and lowered by a. singletop lever, neck cords for raising and lowering figuring warp threads,and dobby mechanism for selectively controlling said harness frames andsaid neck cords, half' of said dobby mechanism being located on one andhalf on the opposite end of the loom.

4. In a loom for weaving figured fabrics, harness frames for raising andlowering ground warp threads, neck cords for raising and lowerinnrfiguring warp threads,` ltop levers located on each end of the loom foroperating said harness frames and said neck cords, some of said neckcords being attached to top levers on one end of the loom and some totop levers on the op osite end of the loom, and dobby motion orselectively controlling said harness frames and said neck cords, part ofsaid dobby motion being located on one end of the loom and part on theopposite end of the loom.

5. In a loom for weaving figured fabrics, harness frames for raising andlowering ground warp threads, neck cords for raising and loweringfiguring warp threads, top for mrds. some of said neck cords beingattached i cords,

the invention what l cords,

to top levers on one end of the cloom and some totop levers on theopposite end of the loom,land dobby motion fo' selectively controllingsaid harness frames and said neck cated on one end of the loom the oposite end ofthe loom. e

i1 a loom' forweaving figured fabrics, harness frames for raisingwandlowering ground warp threads, neckcordsor raising and lowerin figuringwarp threads, top levers located on each end 'of the loom for operatingsaid harness framesn'nd said neck some of saidneck cords being attachedto tcp levers on one end. of the-,loom and -some to top levers ontheopposite end of the loom, a plurality .of dobby.mechanisms forselectively controlling vsaid harness 'frames and said neck cords andmeans. connecting the kdobby mechanisms" for operating said dobbymechanisms in synchronism.

7. In aloom harness frames4 for raising and lowering ground warpthreads, toplle'v'ers for raising and lowering said harness frames,each. harness frame being raised and lowered. by a. single top lever,lowering figuring warp threads, and a dobby? alf of said dobby motionbeing loi and half on' for weavingafigured fabrics,

neck cords for raising and l mechanism comprising a plurality of head?motions operating in synchronisrn for selec" tively controlling saidharness frames and said neck cords.

S.l In a loom for weaving figured fabrics, .-i.

harness frames for raising and lowering ground warp threads, topleversfor raising and lowerino said harness'frames, each han ness franie beingraised and lowered by a single top lever, neck cords for. raisin andlowering figuring warp threads, and a.

h obb mechanism comprising a plurality of head i motions operating insynchronisin for selectively controlling said harness frames and saidneck cords, nism being located onone end of the loom and part thereof onthe opposite end of the loom.

9.. In a loom for weaving figured. fabrics,

part `of said dobby niechaf harness frames for raising and loweringground warp threads, neck cords for raising and lowering figuring warpthreads, top levers located on each end ofthe loom for operating saidharness frames 'and said neck;

cords, some of said neck cords4 being attached to top levers .on .oneend of the loom and some to top levers on the 'opposite endof the loom,dobby mechanism includin "harness levers for operating harnesses [andiVAfigurin levers oroperatiiig` the neck cords, .part o said harness andfiguring, levers being loont'- ed on one end of the loom, andpart'thereof on the opposite 'end of the loom, and pattern mechanism forcontrolling the dobby mechanisin.

10. In a'loom for weaving figured fabrics, harnessA frames for raising'and lowering ground Warp threads, neck cords for raising and lovveringfiguring Warp threads, (lobby mechanism including harness levers -foroperating harnesses and figuring levers forY ll. In a loom for Weavingfigured fabrics, harness frames ttor raising and lowering ground warpthreads, ne k cords for raising and lowering figuring warp threads,dolacy mechanism including harness levers 'tor operating harnesses andfiguring levers Jfor or erating the neck cords, part of said harness andfiguring leversnlieing located on one end of the loom, and part thereoton the opposite end of the loom, pattern mechanism for controllingeachdolihy mechanism, and Ineens connecting the (lobby mechanism toroperatm ing said flohhy mechanisms and pattern chains in synchronism.

l2. n e loom for Weaving figured fabrics, harness frames for raising andlowering ground Warp threads, neck cords for raising and loweringfiguring Werp threads, doohy mechanism including top levers at each ofthe loom, means connecting one dolohy mechanism with the opposite doh'byinschanis'm "for operating seid dolohy mechanisms in synchronisin, andpattern mechanism as* sociated with esch dohliy mechanism forselectiv'ely controlling the harness trames and neck cords, whereby 'theneck cords a.. tached to the ton levers on one side of the loom rosy liecontrolled independently of tlie neck cords attached to the top leversonithe opposite .side of loom. e

13. ln a loom., in combination, a clohhy at cach side of the loom, eroel-:er lever and top levers on each clohoy, means connecting;` therocker lever ot one doliliy with the rocker lever of the opposite cohhy'tor oscillating dolihy mechanism.

L i. ,sessie said rocker levers in synchronisin, harness frames forraising and lowering Warp threads, each harness frame being raised andlowered oy a, single' top lever, primary neck cords attached to othersof said top levers, a series oi secondary neck cords attached to eachprimary neck cord for lifting figuring 'warp threads, a coinher hoardthrough Which pass the secondary neck cords, pattern mechanismassociated 'ith each (lobby for selectively controlling top levers,whereby the neck cords attached to the top levers on one side of theloom may he controlled independently of the neck cord attached to thetop levers on the opposite side of the loom.

lli. ln a loom, in combination, e dobby at each side or" the los Y, arocker lever and top A an adjustable rod conarm of one rocker lever n otthe opposite rocker lever to open said rocker levers in synchronism, hez-.ess trames 'for raising and lowering terp threadsach harness trainebeing raised and lowered oy a single top lever, primary neck cordsattached to others of saio top levers, a series of secondary neck cordsattached to each primary neck cord for lifting iguring; warp threads, afixed cornbcr hoard through which pass the secondary neck cords, apattern chain connected with one rocker lever for controlling the toplevers on one side ot' the looxn, a second pattern chain connected withthe opposite rocker lever for controlling top levers on that side ofalso moving in synclnonism but provided with separate patterns, wherebythe neck cords attached to the top levers on one side of the loom may hecontrolled independently of the neck cords attached to the top levers onthe opposite side of: the loom.

ln testimony whereof l hereunto affix my signature.

nectin i with tie lower YVlLLlAll S. A PPLEGATE.

the looin` said pattern chains.

